Takeshi Oomura is an unfortunate fellow. He has suffered from this streak of bad luck since childhood. One day, while enduring his usual run of misfortune, he meets an angel named Elle and discovers that his father placed the curse of bad luck upon him. Takeshi has the opportunity to pass the curse on to someone else, but he accepts it to save a young girl. For his noble act, Elle becomes human and lives with Takeshi to protect him from the curse, a situation Takeshi is not particularly happy about.